Hitachi Highly WHP07850VUK User manual

HitachiHighly
Rollkolbenverdichter
Rotary Compressors
Spezifikation
Installation Manual
WHP07850VUKQA8JT6T
RIES GmbH, Rudolf-Diesel-Str. 10, D 64569 Nauheim, GERMANY
Phone: [phone], Fax: [phone], Email: [email protected], Website: www.ries-gmbh.de
R 410A - R 452B - R 454C - R 454B
18,6 cm3/rev
900 - 7200 min-1

Contents
I WHP07850VUKQA8JT6T —————1～4
1. Application range
2. Compressor specifications
3. Motor parameters
4. Parts and drawings list
5. General characteristics
II Heat pump water heater dedicated compressor reference
— ——5～15
III Acceptance ———————16
1. Acceptance basis
2. Acceptance rules
———————17～30
IV Drawings
V Modifications ———————Appendix

SUBJECT
Model WHP07850VUKQA8JT6T SPECIFICATION PAGE:1/30
1. SCOPE
This specification is applied to SHANGHAI HIGHLY Heat pump water heater compressor.
2. SPECIFICATION OF COMPRESSOR
2.1 Model WHP07850VUKQA8JT6T
2.2Power source input to HIGHLY inverter
Rated Voltage/Frequency/Phase 220V/50Hz/single
2.3 Application Heat pump water heater
2.4 Refrigerant
2.5 Compressor Cooling
R410A/R452B/R454C/R454B
Forced air
2.6 Displacement 18.6ml/rev（Double-cylinder ）
2.7 Performance
Refrigerant R410A R452B R454C R454B
Item Rated Condition Rated Condition Rated Condition Rated Condition
Rotational speed 3600 min-1 3600 min-1 3600 min-1 3600 min-1
Nominal Heating Capacity 7820W 7594W 5365W 7530W
Motor input 1805W 1734W 1149W 1715W
Current 5.50A 5.34A 4.00A 5.29A
COP(see*) 4.33 4.38 4.67 4.39
Test Conditions
Evaporating temp. 7.2℃ 7.2℃ 7.2℃
Condensing temp. 54.4℃ 54.4℃ 54.4℃
Liquid temp. entering
expansion valve. 46.1℃ 46.1℃ 46.1℃
Return gas temp. 35℃ 35℃ 35℃
Ambient temp. 35℃ 35℃ 35℃
Wind speed 2m/s 2m/s 2m/s

SUBJECT
Model WHP07850VUKQA8JT6T SPECIFICATION PAGE:2/30
*COP=
Heating capacity (W)
Motor input (W)
2.8 Allowable frequency range 900~7200rpm
2.9 Allowable amount of refrigerant
charge 1650g
2.10 Amount of oil charge
2.11 Oil
500±20 ml(Initial)
HAF68D1/HAF68D1U/ALPHA68HES or equivalent
2.12 Space volume of inner case 1200 ml
2.13 Net weight 10.0kg incl.oil
2.14 Hermetic Terminal 1/4”quick connect
type
2.15 Motor
Type
Insulation class
Winding resistance
Direct current brushless motor
Class E
1.354Ω(at 20℃)
* Nominal heating capacity equals refrigerant capacity adding motor input. Refrigerant capacity and motor input are measured
by secondary Refrigerant calorimeter Methods of GB5773by Shanghai Highly Electrical Appliances Co.,Ltd. Allowable heating
capacity should be more than 95% of the nominal heating capacity and allowable motor input should be less than107% of nominal
motor input.

SUBJECT
Model WHP07850VUKQA8JT6T SPECIFICATION PAGE:3/30
3. MOTOR PARAMERER
project parameter description
3.1 Rotor Pole(Pole) 66 electrodes 9 slots
concentrated winding
3.2 Rated Frequency Range（Hz）15-120
Mechanical Frequency ， Relating to
VDCmax of Inverter
3.3 Demagnetizing Curren（A）29.0
Peak Current，at130℃，-5%
Demagnetizing Rate
3.4 Inductance Ld（mH）Sheet 1 ——
3.5 Inductance Lq（mH）Sheet 1 ——
project parameter description
3.6 Winding Resistance（Ω）（20℃）1.354（20℃）Phase-to-Phase
3.7 Voltage Constant（Vrms/krpm）52.34 Phase-to-Phase
3.8 Torque Constant（N·m/Arms）0.65 Torque/Current
3.9 Inertia （Kg·m2）0.000388 --
3.10 Flux Φa（Wb）0.1351
φ(Per Phase，Peak)=
3.11 Magnet Material NdFeB
1：100Hz.
（RMS） 1.0 2.0 3.0 4.0 5.0 6.0 7.0
Lq(mH) 12.09 11.84 11.47 11.09 10.67 10.27 9.86
Ld(mH) 8.87 8.78 8.61 8.40 8.15 7.91 7.68

SUBJECT
Model WHP07850VUKQA8JT6T SPECIFICATION PAGE:4/30
4. PARTS AND DRAWING LIST
PARTS NAME QTY/SET DRAWING NO. REMARKS
Compressor 1 4CYCD**** Dimensioned sketch
Mounting
Parts Rubber grommet
Bolt
Nut
3
-
-
4CYC00851
4CYC00940
（M8）
*
*
Electrical
Parts
Terminalcover
Gasket
Sleeve
Nut
Rubber washer
Thermostat
1
1
1
1
1
1
4CYC01114
4CYC01113
4CYC01042
3CYC00004
4CYC00174
4CYC01045
4CYC01268
1
2
3
Lead routing
Pressure guarantee
Chart
Oil level datum
Notes for rotational
speed change
Performance curse
Appendix
*. Out of supply，for reference.
5. CHARACTERISTICS 5.1
Residual moisture 200mg MAX
5.2Residual impurities 100mg MAX

HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:5/30
COMPRESSOR CRITERIA
1 Strictly observe the specification
The compressor should be used in specifications written in this “compressor specification” and
not be usedin specifications outside it. Moreover, accessories should be specified parts used in
specified way, service must use specified parts too. The main circuit must link up with fuse or
breaker.
2 Source voltage
Specified inverter is linked upwithcompressor terminals . Applied voltage of this inverter should
be voltage specified in this “compressor specification”. Alternating voltage should never be
applied on terminals (for example：commercial alternating voltage of 1 100V,200V,3200V).This is
because that if applied alternating current the direct current motor will demagnetize.
3 Operating voltage range
The compressor should be operated in the rangeof rated voltage 10% , under standard
condition and overload condition of rated frequency (applied voltage to inverter).
It must be satisfied with item 5 ,6,7.
4 Operating temperatures and pressures
The operating temperatures and pressures of a compressor should be within the range shown in
the table 1.

HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:6/30
Table 2
Item Operating Envelope （see graph 1）
Refrigerant R410A R452B R454C R454B
Discharge pressure
MPa{kgf/cm2G} 4.279 MAX
（condensing
temperature:
65℃）
4.039 MAX
（condensing
temperature
65℃）
3.124 MAX
（condensing
temperature:
70℃）
3.991 MAX
（condensing
temperature:
65℃）
Suction Pressure
MPa{kgf/cm2G}
0.272~1.652 0.254~1.562 0.172~1.084 0.251~1.543
(Evaporation Temperature ：-30℃~25℃)It can also be 0.101～0.172
MPa when in transition , but should not be used when it is less
than 0.101MPa
Compressor case bottom temp 99℃or below and 6 degrees higher than condensing temperature
Motor winding temp. Rated voltage: ：105℃MAX
Ra t e dVoltage±10%:
120℃MAX
Accumulator temp Higher than outlet pipe of evaporator
Notes: Overload condition should not be continuous.
Graph 1(a)
P1 P2 P3 P4 P5
Condensing temperature 65℃28℃5℃45℃65℃
Evaporation Temperature 25℃25℃-30℃-30℃-5℃

HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:7/30
Graph 1(b)
P1 P2 P3 P4 P5
Condensing temperature 70℃28℃5℃65℃70℃
Evaporation Temperature 25℃25℃-30℃-30℃-10℃
5Current limitation
Current peak among motor terminals（include instantaneous current peak）should be
below 29.0A(at130 ) in order to prevent magnet in motor from demagnetization.℃
6 Pressure difference between suction and discharge
In all allowable rotational speed range, the difference of pressure should be more than
0.39MPa{4kgf/cm2}. But if there is no problem of noise when assembled in air conditioner,
it can also below this value.
7 Discharge pipe temperature
Discharge pipetemperature is measured at a distance300mm from the surface of compressor
and should be less than 110℃. The tip ofthe thermocouple is fixed bysoldering when
measuring discharge pipe temperature .Furthermore, soldering point is covered with urethane
foam to prevent the effect ofwind.
8Air leakage test pressure
The pressure should be less than 2.847MPa{28kgf/cm2G}.

HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:8/30
9Oil back and oil level
The oil should be returned continuously to the compressor and the structure of the refrigerating system should not
make oil stay in the system. The oil level in compressor should be higher than 7.5 mm from the lu
b
ricating piece fixed
on the end of the crankshaft.If not keep the oil level, the shortage will occur, and influence the reliability of the
compressor.(please check the oil level in the compressor with the sight glass which supplied form SHEC.
10 Dust of compressor hermetic terminals
Compressor hermetic terminals should be mounted with specified cover in right way to prevent
dust entering, and should be used in direction which dust is hard to enter in.
11 Lead wire of compressor hermetic terminals
Measuring the temperature of hermetic terminals , lead wire should be resist to the temperature
and be clamped so as not in touch with the surface of compressor and pipe.
12 Start-stop frequency
The frequency should be less than 6 times per hour. Operating time from start to stop should
be more than 3 minutes. Stopping time should be more than 3minutes. But oil level should be met
to item 8. Suction and discharge pressure should balance completely before restarting.
3
13 Rate ofrotational speed change
The rate of compressor rotational speed (acceleration) should be less than 133min-1/s, But if
The variable range is below 120min-1, rate can also be less than 600min-1 /s when rotational
Speed is reduced to avoid temporary over- current. The change of compressor rotational speed is referred to chart 3.
14 Air and moisture in refrigerating system
The degree of vacuum in refrigerating system should be less than 133Pa (998×10－3mmHg) at
room temperature just before charging refrigerant. The quantity of water should be less than 0.15ml.

HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:9/30
15 Impurities in refrigerating system
(1) The weight of residue on the inside surface of the heat exchanger and tube should be less
than 0.01g/m2. But metallic dust should not be permitted in the system. This value means the
weight of foreign residue collected by filer paper after washing inside surface of the heat exchanger tubes with R-11.
(1) Prevent the impurities from entering into the enclosed unit system used refrigerant. When the impurities
entered into the enclosed system, it will damage the moving mechanism parts and result in the capillary depositing.
(1) Eliminate all system contaminants such as trichlorethylene, alkalies, soaps, oil, acids &
washing fluid used at machining heat exchanger and tubes.
16 Compressor vacuum operation
Compressor should never be operated while under vacuum. Otherwise, internal arcing can cause damaging
parts.
17 The compressor should be operated for more than 20 seconds within 15 minutes after charging
refrigerant into the system so proper lubrication results.
18 Liquid refrigerant return limitations
(1) Liquid refrigerant level in s-tank should be lower
than the top of s-pipe in s-tank.(see chart at right)
(2) There should not exist noise of the liquid refrigerant compression,
current and vibrancy increase. System can append the assistant stank
or reduce the amount of refrigerant to prevent from liquid refrigerant
compression. Refrigerant system forbid liquid refrigerant from
flowing back compressor in any case. In normal condition the overheat gas refrigerant should flow back
compressor.

HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:10/30
19 Process limitation of refrigerating system
(1) Be careful of avoiding oxide scale while soldering during assembly of refrigerating system.
(for example: flow or fulfill dry nitrogen)
(2) The motor winding temperature should be less than 149 and hermetic terminal body℃
temperature should be less than 177 in process of manufacturing.℃
20 Apply for vehicle
The compressor should not be used on moving equipment such as automobiles, trains, ships, etc.
20 Installation
The rotational axis of compressor should be kept vertical during operation. But in actual
application the axis incline must be within 5°at all directions during operation.
21 Pipe vibration
The displacement of the pipes, which connect from the compressor to other parts of the refrigerate-
or systems, should be less than 0.8mm(1/32”)when the compressor is operating at allowable
rotational speed range and voltage range of rated ±10%.
Displacement in excess of 0.8mm(1/32”) will require changing tube length and/or routing.
22 Connecting tube design
In designing and routing tubing that connect from the compressor to the other parts of the air conditioner, following
should be considered.
Moving tubes to the moving parts; minimum clearance 12.7mm(1/2”)
Moving tubes to non-moving parts; minimum clearance 9.5mm((3/8”) ; Moving tubes never touch to lead wire.
。
23 Avoid refrigerant migration
The refrigerant migration to compressor shell should be avoided during the heat pump water heater system shut
down periods, It’s suggested that the electric heating belt should be used around
the shell bottom when necessary.
。

HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:11/30
24 Miscellany
(1) The compressor should be carried carefully to avoid drop, drag ,impact and should not apply
partial force on projection parts such as pipe, hermetic terminals, foot during carrying and
processing.
(2) The compressor should not be operated to form a vacuum and to absorb air. The compressor only can run
in one direction which according to lead routing wiring diagram. Never reversion otherwise the
compressor will be in trouble.
（3）The compressor should not be left opened in the atmosphere for more than 5 minutes.
When the air entered into the unit system with refrigerant, it will expedite the deterioration of
the oil and result in the capillary depositing and the reducing of insulation resistance.
(4) Electric pulse should not be applied to compressor when it is in vacuum.
(5) The compressor should be kept in the place with low-dust, low-moisture.
(6) The compressor can’t be used in the place with corrosive atmosphere such ashot spring and
chemical warehouse. It should not be the structure often splash water on the surface of the
compressor forcibly.
(7) The trouble of crossvalve, electromagnetic valve, defroster, refrigerant controller, fan motor
used in refrigerating system may cause compressor accident .So their reliability should be
ensured completely. Moreover, the way of design, manufacture, application of refrigeration
cycle with less-leak should be adopted.

HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:12/30
(8) The main electric circuit should be equipped with fuse or breaker.
(9) Refrigerant should be charged from the end of condenser of refrigerating systems. Never
Charge refrigerant to the compressor directly.
The refrigerant should always be charged in liquid state. When the refrigerant is charged in gas state,
The percent component will possibly be changed. Do not recharge with theremaining refrigerant in the system when
leakage happened. Because the percent component of the refrigerant in the unit system had possibly been changed.
(10) Temperatures within systems during stable compressor operation should not be less than
-35 to prevent waxprecipitation fromthe oil.℃
(11) Compressor mounting
Rubber grommets are designed soft to provide the noise isolation and to lessen vibration
Energy transmission. Stud bolt should be designed to provide sufficient clearance for noise and vibration isolation
and to prevent compressor from coming off its mount.
(12)The units of refrigerating system should be connected to earth.
(13)There should be adequate clearance between the under-surface of Push-Nut and the
upper surface of rubber grommets.
(14) SHEC will not take any responsibility against accident that is caused by the accessories
equipped by yourselves.
(15) The hermetic terminals of compressor should not be inserted slantingly and not be applied
twisting force after inserting so as to avoid reducing of terminal fixed force.

HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:13/30
(16) The pipe and hermetic pens attached to the compressor should not be bent.
(17)The dropped compressor can’t be used anymore.
(18) Compressor can be used when ambient temperature is higher than -10 . Confirm the start℃-up
of compressor if the temperature of compressor surface is below -10 . Heat up compressor to℃
reach the temperature higher than -10 with heater if the ambient temperature is below℃-10 .℃
(19)Set a thermistor on the case cover of compressor to prevent from accident of leakage of refrigerant.
The thermistror can stop the operation of compressor when compressor in abnormal temperature.
The lead wires of thermostat is enveloped with tube, as same as that of the terminals, to
avoid direct contact with the compressor and pipe.
(20) The compressor should not be splashed with water intentionally. Prevent moisture from entering into the
enclosed unit system. When the moisture entered into the unit of the refrigerant R410A, the
refrigerant oil and the organic compound material presented in the hermetic motor will possibly
decompose on the affecting of water. It will result in the capillary depositing and the reducing of
insulation resistance.
It is necessary to install a dryer to dehumidify the residual moisture mixed in the refrigerant in
the cycling system. The specially defined molecular-sieve dryer is advised.

HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:14/30
(21) Use the refrigerant of specified brand. When the refrigerant not specified used, it will possibly cause trouble
of the performance and reliability of the compressor by the impurities in the refrigerant.
(22) The lead wires should be connected to hermetic terminals without being touched on the surface of the
compressor.
(23) The quantity and kind of contamination (the process materials) in the cycle should be grasped and
managed. Carry on reliability test that input contamination a lot than anticipated contamination
quantity.
(24) To avoid water and impurity into he refrigeration system and make sure no leakage of refrigerant during the
operating course. It’s required to direct the erector and maintenance man of air-conditioner.
(25)Adjust the start-up torsion of the compressor to above 0.55Nm by inverter. Confirm and measure the start-up
current if change the parts and design.
25. PROCESSLIMITATIONS
25.1 The degree of vacuum in the refrigerating system should be less than 20Pa
{150×10-3mmHg}at room temperature just before charging refrigerant.
The quantity of water should be less than 0.2ml.
25.2 The weight of foreign particles on the inside surface of the heat
exchanger tubes should be less than 0.05g/m2.
Metallic dust should not be permitted to enter the refrigerating system.
This value means the weight of foreign particles filtered after washing
inside surface of the heat exchanger tubes with R-11.

HEAT PUMP WATER HEATER COMPRESSOR CRITERIA FOR LONG LIFE SYSTEM PAGE:15/30
25.3 Eliminate all system contaminants such as trichlorethylene, alkalies,
soap, acid, oil & washing fluid used at machining the heat exchanger tubes.
25.4 Purge parts with dry nitrogen or dry air to remove remains in parts
(dust, detergent，etc.) before assembly of system.. Time for purging :over one
second for pipe ;over three seconds for heat exchanger . Purging pressure:
0.9±0.1MpaG.Dew point of dry air: Below -20°C。
Dry nitrogen should be charged in compressor before assembly of system.
Welding should be finished within one minute after charge of nitrogen. Dry nitrogen needs to
be charged again and weld if over one minute. Always purge the compressor with dry nitrogen
during assembly ofsystem .
25.5 The motor winding temperatures should be less than 149 in process of℃
manufacturing the refrigerating system. The temperature of the hermetic
terminal body should be less than 177℃.。
25.6 The compressor should be operated for more than 20 seconds within 15
minutes after charging refrigerant into the system so proper lubrication results.

Check upon Delivery PAGE:16/30
1. Basis for Checking upon Delivery
The Performance test will be carried out in accordance with this “compressor
Specification”.
The Safety Performance in accordance with GB4706.1 Safety of household and
Similar electrical appliances General requirements and GB 4706.17 Safety
Of household and similar electrical appliances Particular requirements for
Motor-compressor.
2. Rule for Checking upon Delivery
If come across any quality problem, please notify the company in written form
Within 30 days after the arrival of the cargo, the company shall exchange
Exactly the number of the products, otherwise they shall be regarded as being
Up to standard.

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